<template>
  <div class="home-page">
    <!-- 顶端导航栏 -->
    <!-- v-model 绑定当前选中标签的标识符 -->
    <van-tabs animated v-model="articleIndex">
      <van-tab v-for="item in myChannels" :title="item.name" :key="item.id">
        <article-list :channelId="item.id"></article-list>
      </van-tab>
    </van-tabs>

    <!-- 按钮 -->
    <div class="btn-wrapper">
      <geek-icon name="search"></geek-icon>
      <geek-icon name="channel" @click.native="showChannel = true"></geek-icon>
    </div>

    <!-- 频道弹出层 -->
    <!-- 简化: :activeIndex.sync="activeIndex" -->
    <ArticleChannel
      v-model="showChannel"
      :myChannels="myChannels"
      :articleIndex="articleIndex"
      @update:articleIndex="articleIndex = $event"
    ></ArticleChannel>
  </div>
</template>

<script>
import { getMyChannelsAPI } from '@/api/channel'
import ArticleList from './components/article-list'
import ArticleChannel from './components/article-channel'
export default {
  name: 'HomePage',
  components: {
    ArticleList,
    ArticleChannel
  },
  data () {
    return {
      myChannels: [],
      showChannel: false, // 弹出层显示隐藏
      articleIndex: 0
    }
  },
  async created () {
    // const [, res] = await getMyChannelsAPI()
    // this.myChannels = res.data.data.channels
    // console.log(this.myChannels)
    const channel = await getMyChannelsAPI()
    this.myChannels = channel
    console.log(this.myChannels)
  },
  watch: {
    // 登录状态切换 需要更新数据
    '$store.state.user.token': async function () {
      const channels = await getMyChannelsAPI()
      this.myChannels = channels
      this.articleIndex = 0
    }
  }
}
</script>

<style scoped lang="less">
.home-page {
  ::v-deep .van-tabs {
    height: 100%;
    display: flex;
    flex-direction: column;
    .van-tabs__line {
      background: @geek-color;
      height: 2px;
      width: 32px;
    }
    .van-tab {
      color: #9ea1ae;
    }
    .van-tab--active {
      font-size: 18px;
      color: #333;
    }
    .van-tabs__wrap {
      padding-right: 86px;
      box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    }
    .van-tabs__content {
      flex: 1;
      overflow: hidden;
    }
    .van-tab__pane {
      height: 100%;
    }
  }

  .btn-wrapper {
    position: absolute;
    right: 0;
    top: 0;
    width: 86px;
    height: 44px;
    background: #fff;
    display: flex;
    align-items: center;
    .geek-icon {
      flex: 1;
      text-align: center;
      font-size: 18px;
    }
    &::before {
      content: '';
      width: 20px;
      height: 44px;
      position: absolute;
      left: -20px;
      top: 0;
      background: linear-gradient(to right, rgba(255, 255, 255, 0), #fff);
    }
  }
}
</style>
